EASTERN ALBERTA TRANSMISSION LINE PROJECT

PROJECT SPOTLIGHT

HIGHLIGHTS:

LOCATION:Eastern Alberta (Brooks to Hanna and Gibbons to north of Vegreville)

PROJECT TYPE:Transmission Line foundations

AUTHORIZED CONTRACTOR: Valard Construction (A Quanta Services Company)

LAFARGE CLIENT: Sharps Construction (A Quanta Services Company)

DEVELOPER/OWNER: ATCO Electric Transmission Division

EPCM: Bechtel

VALUE: $1.8 B

PROJECT TIMELINES: April 2013 – October 2015

MATERIALS SUPPLIED: 16,000 m3 Agilia™ 4,000 m3 Chronolia™

ATCO Electric builds, operates and maintains a network of transmission and distribution power

lines in northern and east-central Alberta. ATCO Electric’s Transmission Division is accountable

for growth, planning, engineering, construction, operations and maintenance of transmission

facilities. The company owns and operates about 11,000 kilometres of transmission lines. Over

400km of these were built from 2013-2015 as part of the Eastern Alberta transmission line

project.

Large Project with Complex RequirementsATCO built planned to build the new 500kV transmission line over a period of 14 months,

spanning 488 kms, from Brooks Alberta to Gibbons Alberta. The project involved 1,490 steel

lattice transmission towers, 1,280 augured grillages and 1,000 caissons, totaling close to

40,000 m3 of concrete. This was a large job with multiple delivery points.

Just In Time Delivery NeededHoles for the tower concrete foundations cannot be drilled in advance, so close attention to

working with Sharps’ schedule was required. The concrete had to arrive as the drilling was

completed just in time for each pour, and with the right consistency to be poured at that

moment. The project ran 7 days per week and the schedule changed under the demands of the

project, increasing the complexity. Lafarge brought in additional drivers and a quality control

technician to ensure its product and service met with Sharp’s needs in the field.

Lafarge Western Canada

CORPORATE OFFICE300-115 Quarry Park Road SE

Calgary, AB T2V 5G9

Lafarge.ca

Specialized Concretes Save TimeThe use of Agilia™ self-consolidating concrete and Chronolia™ very high early strength

concrete allowed Sharps to save time in the field. These value added products were e

shipped up to 130 kms from the Brooks Plant to the tower sites thanks to Lafarge’s in-

depth understanding of concrete delivery and concrete mix design.

Successful ProjectFrom May 2013 through September 2014, the Brooks to Hanna leg of ATCO’s Eastern

Transmission Line was built. Lafarge’s Brooks, AB plant delivered over 16,000 m3 of

concrete to the tower drill sites along the right of way for the new line.

A similar process was followed for the 4,000m3 of Agilia poured on the Gibbons to

Vegreville portion of the transmission line.

“The project required 7 day service and just-in-time concrete delivery to the tower drill sites. We were able

to use our expertise to ensure that the Agilia delivered for every pour met the specs in the field, up to 130

kms from our plant.”

Anna Starke, Plant Manager

Brooks Ready-Mix Operation

Lafarge Canada Inc.

“Lafarge was able to provide a constant supply of trucks and operators, as well as QC support, to ensure

that our product was delivered in a timely and efficient manner.”

Alex Budzinski

Project Manager,

Sharps Construction

What is the Eastern Alberta Transmission Line?

The proposed Eastern Alberta Transmission Line project is one of the Alberta critical transmission infrastructure projects set out in the Electric Utilities Act. The project involves the construction of a 500-kilovolt high-voltage direct-current transmission line, approximately 500 kilometres in length, between the Gibbons-Redwater area northeast of Edmonton and the Brooks area southeast of Calgary. The project also involves building a new converter station and related facilities at each end of the new line, to convert power from alternating-current to direct-current, and to connect the new facilities to the Alberta integrated electric system.

The application to the AUC consists of three main components:

• Construction of a 500-kilovolt (kV) alternating-current 2029S, in the Redwater-Gibbons area northeast of Edmonton, Section 21, Township 56, Range 22, west of the Fourth Meridian.

• Construction of a 240-kV AC/500-kV DC converter station called half of Section 9, Township 18, Range 15, west of the Fourth Meridian.

• Construction of a 500-kV DC transmission line, called 13L50, proposed Newell 2075S converter station.

The application also proposes the construction of:

• Two 500-kV AC transmission lines designated as 12L70 and 12L85, the AltaLink Management Ltd. (AltaLink) Heartland 12S substation. The Heartland 12S substation is located in the northeast quarter of Section 20, Township 56, Range 22, west of the Fourth Meridian.

The application further proposes the construction of 240-kV AC transmission lines to connect the Newell 2075S converter station to the Alberta integrated

• Two 240-kV AC transmission lines, designated as 923L and 1087L, each approximately one kilometre in length. These two circuits would be strung on double-circuit, steel lattice structures and would connect to AltaLink’s existing 240-kV transmission line 923L between the Milo 356S and Cassils 324S substations.

• Two 240-kV AC transmission lines designated as 1035L and 1088L. These two circuits would be strung on double-circuit, steel lattice structures and would connect to AltaLink’s 240-kV transmission line 1035L between the Cassils 324S and Bowmanton 244S substations.

ATCO Electric Ltd. is the project applicant for the Eastern Alberta Transmis-sion Line application.

Interveners include landowners and residents in favour of, or opposed to, the project who have a stake or interest in the results of the hearing. These may include individuals or groups whose concerns have been unresolved during consultations conducted by ATCO Electric. They will express their views and make submissions before the AUC panel during the public hearing on EATL.

The AUC panel includes three Commission members and is supported by AUC staff members including lawyers, engineers and support staff.

AUC hearing staffpleased to assist where they can.

Proposed route for EATL:Additional maps can be found at: http://www.auc.ab.ca/items-of-interest/eastern-alberta-transmission-line/Documents/EATL_map.pdf http://hvdc.atcoelectric.com/Maps/Interactive+Map.htm

A complete application can be obtained from: https://www.auc.ab.ca/eub/dds/EPS_Query/ApplicationDetails.aspx?AppNumber=1607153&ProceedingId=1069

related to the application which have been recently introduced, submitted or conducted. If you intend to use the information in this pamphlet for purposes other than general information, please contact the applicant, ATCO, to ensure you have up-to-date information.

Map of theEastern Alberta Transmission Line

For more information about the Alberta Utilities Commission and what we do, please visit our website at www.auc.ab.ca

Consumer RelationsPhone: 780-427-4903, orEmail: consumer-relations@auc.ab.ca

Information ServicesPhone: 403-592-4500, or Email: info@auc.ab.ca

AUC contact information:The Alberta Utilities CommissionFifth Avenue Place East400, 425 First Street S.W.Calgary, Alberta T2P 3L8403-592-UTIL* (8845)

*Dial 310-0000 prior to the 10 digit number for toll-free access anywhere in Alberta

LAMONT

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EDMONTONGROVE

ALBERT FORT

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WETASKIWINCAMROSE

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STETTLER

PONOKA

AIRDRIE

CALGARY

BROOKS

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PROPOSED NEWELLCONVERTER STATION

PROPOSED HEATHFIELDCONVERTER STATION

T.17

T.19

T.21

T.23

T.25

T.27

T.29

T.31

T.33

T.37

T.39

T.41

T.43

T.45

T.47

T.49

T.51

T.53

T.55

T.57

R.12 W.4M.R.14R.16R.18R.20R.22R.24R.26

LAKE

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VEGREVILLE

PREFERRED TRANSMISSION

ALTERNATE TRANSMISSIONLINE ROUTE

LINE ROUTE